Home / 12,547.20-17,312.28-7,512.24

Finding the Fourth Proportional to 12,547.20, 17,312.28 and 7,512.24

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Solution

The fourth proportional to 12,547.20, 17,312.28 and 7,512.24 is: 10,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.20 : 17,312.28 = 7,512.24 : x
  2. Step 2: Convert to fraction form
    12,547.20/17,312.28 = 7,512.24/x
  3. Step 3: Cross multiply
    12,547.20x = 17,312.28 × 7,512.24
  4. Step 4: Simplify right side
    12,547.20x = 130,054,002.31
  5. Step 5: Solve for x
    x = 130,054,002.31/12,547.20
  6. Step 6: Final answer
    x = 10,365.18

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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.