Home / 10,864.78-14,988.93-6,612.43

Finding the Fourth Proportional to 10,864.78, 14,988.93 and 6,612.43

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Solution

The fourth proportional to 10,864.78, 14,988.93 and 6,612.43 is: 9,122.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,864.78 : 14,988.93 = 6,612.43 : x
  2. Step 2: Convert to fraction form
    10,864.78/14,988.93 = 6,612.43/x
  3. Step 3: Cross multiply
    10,864.78x = 14,988.93 × 6,612.43
  4. Step 4: Simplify right side
    10,864.78x = 99,113,250.40
  5. Step 5: Solve for x
    x = 99,113,250.40/10,864.78
  6. Step 6: Final answer
    x = 9,122.44

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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.