Home / 12,986,245.04-17,916,666.27-7,479,509.63

Finding the Fourth Proportional to 12,986,245.04, 17,916,666.27 and 7,479,509.63

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Solution

The fourth proportional to 12,986,245.04, 17,916,666.27 and 7,479,509.63 is: 10,319,216.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,986,245.04 : 17,916,666.27 = 7,479,509.63 : x
  2. Step 2: Convert to fraction form
    12,986,245.04/17,916,666.27 = 7,479,509.63/x
  3. Step 3: Cross multiply
    12,986,245.04x = 17,916,666.27 × 7,479,509.63
  4. Step 4: Simplify right side
    12,986,245.04x = 134,007,877,903,961.17
  5. Step 5: Solve for x
    x = 134,007,877,903,961.17/12,986,245.04
  6. Step 6: Final answer
    x = 10,319,216.79

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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.