Home / 12,731,505.85-17,536,009.53-9,785,689.63

Finding the Fourth Proportional to 12,731,505.85, 17,536,009.53 and 9,785,689.63

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Solution

The fourth proportional to 12,731,505.85, 17,536,009.53 and 9,785,689.63 is: 13,478,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731,505.85 : 17,536,009.53 = 9,785,689.63 : x
  2. Step 2: Convert to fraction form
    12,731,505.85/17,536,009.53 = 9,785,689.63/x
  3. Step 3: Cross multiply
    12,731,505.85x = 17,536,009.53 × 9,785,689.63
  4. Step 4: Simplify right side
    12,731,505.85x = 171,601,946,609,302.19
  5. Step 5: Solve for x
    x = 171,601,946,609,302.19/12,731,505.85
  6. Step 6: Final answer
    x = 13,478,527.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.