Home / 9,646.28-13,312.12-5,397.20

Finding the Fourth Proportional to 9,646.28, 13,312.12 and 5,397.20

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Solution

The fourth proportional to 9,646.28, 13,312.12 and 5,397.20 is: 7,448.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,646.28 : 13,312.12 = 5,397.20 : x
  2. Step 2: Convert to fraction form
    9,646.28/13,312.12 = 5,397.20/x
  3. Step 3: Cross multiply
    9,646.28x = 13,312.12 × 5,397.20
  4. Step 4: Simplify right side
    9,646.28x = 71,848,174.06
  5. Step 5: Solve for x
    x = 71,848,174.06/9,646.28
  6. Step 6: Final answer
    x = 7,448.28

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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.