Home / 14,070.15-21,109.07-4,711.71

Finding the Fourth Proportional to 14,070.15, 21,109.07 and 4,711.71

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Solution

The fourth proportional to 14,070.15, 21,109.07 and 4,711.71 is: 7,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.15 : 21,109.07 = 4,711.71 : x
  2. Step 2: Convert to fraction form
    14,070.15/21,109.07 = 4,711.71/x
  3. Step 3: Cross multiply
    14,070.15x = 21,109.07 × 4,711.71
  4. Step 4: Simplify right side
    14,070.15x = 99,459,792.65
  5. Step 5: Solve for x
    x = 99,459,792.65/14,070.15
  6. Step 6: Final answer
    x = 7,068.85

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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.