Home / 10,890.48-15,037.34-8,368.59

Finding the Fourth Proportional to 10,890.48, 15,037.34 and 8,368.59

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Solution

The fourth proportional to 10,890.48, 15,037.34 and 8,368.59 is: 11,555.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.48 : 15,037.34 = 8,368.59 : x
  2. Step 2: Convert to fraction form
    10,890.48/15,037.34 = 8,368.59/x
  3. Step 3: Cross multiply
    10,890.48x = 15,037.34 × 8,368.59
  4. Step 4: Simplify right side
    10,890.48x = 125,841,291.31
  5. Step 5: Solve for x
    x = 125,841,291.31/10,890.48
  6. Step 6: Final answer
    x = 11,555.16

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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.