Home / 10,977.61-15,149.34-6,501.28

Finding the Fourth Proportional to 10,977.61, 15,149.34 and 6,501.28

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Solution

The fourth proportional to 10,977.61, 15,149.34 and 6,501.28 is: 8,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.61 : 15,149.34 = 6,501.28 : x
  2. Step 2: Convert to fraction form
    10,977.61/15,149.34 = 6,501.28/x
  3. Step 3: Cross multiply
    10,977.61x = 15,149.34 × 6,501.28
  4. Step 4: Simplify right side
    10,977.61x = 98,490,101.16
  5. Step 5: Solve for x
    x = 98,490,101.16/10,977.61
  6. Step 6: Final answer
    x = 8,971.91

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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.