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Finding the Fourth Proportional to 15,080.40, 20,818.08 and 10,053

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Solution

The fourth proportional to 15,080.40, 20,818.08 and 10,053 is: 13,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,080.40 : 20,818.08 = 10,053 : x
  2. Step 2: Convert to fraction form
    15,080.40/20,818.08 = 10,053/x
  3. Step 3: Cross multiply
    15,080.40x = 20,818.08 × 10,053
  4. Step 4: Simplify right side
    15,080.40x = 209,284,158.24
  5. Step 5: Solve for x
    x = 209,284,158.24/15,080.40
  6. Step 6: Final answer
    x = 13,877.89

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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.