Home / 10,637.78-14,679.90-6,661.10

Finding the Fourth Proportional to 10,637.78, 14,679.90 and 6,661.10

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Solution

The fourth proportional to 10,637.78, 14,679.90 and 6,661.10 is: 9,192.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,637.78 : 14,679.90 = 6,661.10 : x
  2. Step 2: Convert to fraction form
    10,637.78/14,679.90 = 6,661.10/x
  3. Step 3: Cross multiply
    10,637.78x = 14,679.90 × 6,661.10
  4. Step 4: Simplify right side
    10,637.78x = 97,784,281.89
  5. Step 5: Solve for x
    x = 97,784,281.89/10,637.78
  6. Step 6: Final answer
    x = 9,192.17

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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.