Home / 10,100.02-15,142.45-6,971.09

Finding the Fourth Proportional to 10,100.02, 15,142.45 and 6,971.09

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Solution

The fourth proportional to 10,100.02, 15,142.45 and 6,971.09 is: 10,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.02 : 15,142.45 = 6,971.09 : x
  2. Step 2: Convert to fraction form
    10,100.02/15,142.45 = 6,971.09/x
  3. Step 3: Cross multiply
    10,100.02x = 15,142.45 × 6,971.09
  4. Step 4: Simplify right side
    10,100.02x = 105,559,381.77
  5. Step 5: Solve for x
    x = 105,559,381.77/10,100.02
  6. Step 6: Final answer
    x = 10,451.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.