Home / 15,151.02-20,890.53-10,373.28

Finding the Fourth Proportional to 15,151.02, 20,890.53 and 10,373.28

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Solution

The fourth proportional to 15,151.02, 20,890.53 and 10,373.28 is: 14,302.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,151.02 : 20,890.53 = 10,373.28 : x
  2. Step 2: Convert to fraction form
    15,151.02/20,890.53 = 10,373.28/x
  3. Step 3: Cross multiply
    15,151.02x = 20,890.53 × 10,373.28
  4. Step 4: Simplify right side
    15,151.02x = 216,703,317.04
  5. Step 5: Solve for x
    x = 216,703,317.04/15,151.02
  6. Step 6: Final answer
    x = 14,302.89

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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.