Home / 10,988.35-15,148.86-6,953.17

Finding the Fourth Proportional to 10,988.35, 15,148.86 and 6,953.17

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Solution

The fourth proportional to 10,988.35, 15,148.86 and 6,953.17 is: 9,585.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.35 : 15,148.86 = 6,953.17 : x
  2. Step 2: Convert to fraction form
    10,988.35/15,148.86 = 6,953.17/x
  3. Step 3: Cross multiply
    10,988.35x = 15,148.86 × 6,953.17
  4. Step 4: Simplify right side
    10,988.35x = 105,332,598.89
  5. Step 5: Solve for x
    x = 105,332,598.89/10,988.35
  6. Step 6: Final answer
    x = 9,585.84

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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.