Home / 15,690.28-23,538.29-5,160.89

Finding the Fourth Proportional to 15,690.28, 23,538.29 and 5,160.89

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Solution

The fourth proportional to 15,690.28, 23,538.29 and 5,160.89 is: 7,742.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690.28 : 23,538.29 = 5,160.89 : x
  2. Step 2: Convert to fraction form
    15,690.28/23,538.29 = 5,160.89/x
  3. Step 3: Cross multiply
    15,690.28x = 23,538.29 × 5,160.89
  4. Step 4: Simplify right side
    15,690.28x = 121,478,466.63
  5. Step 5: Solve for x
    x = 121,478,466.63/15,690.28
  6. Step 6: Final answer
    x = 7,742.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.