Home / 14,123.35-19,491.95-8,155.01

Finding the Fourth Proportional to 14,123.35, 19,491.95 and 8,155.01

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Solution

The fourth proportional to 14,123.35, 19,491.95 and 8,155.01 is: 11,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.35 : 19,491.95 = 8,155.01 : x
  2. Step 2: Convert to fraction form
    14,123.35/19,491.95 = 8,155.01/x
  3. Step 3: Cross multiply
    14,123.35x = 19,491.95 × 8,155.01
  4. Step 4: Simplify right side
    14,123.35x = 158,957,047.17
  5. Step 5: Solve for x
    x = 158,957,047.17/14,123.35
  6. Step 6: Final answer
    x = 11,254.91

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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.