Home / 15,323.85-21,154.98-10,314.40

Finding the Fourth Proportional to 15,323.85, 21,154.98 and 10,314.40

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Solution

The fourth proportional to 15,323.85, 21,154.98 and 10,314.40 is: 14,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.85 : 21,154.98 = 10,314.40 : x
  2. Step 2: Convert to fraction form
    15,323.85/21,154.98 = 10,314.40/x
  3. Step 3: Cross multiply
    15,323.85x = 21,154.98 × 10,314.40
  4. Step 4: Simplify right side
    15,323.85x = 218,200,925.71
  5. Step 5: Solve for x
    x = 218,200,925.71/15,323.85
  6. Step 6: Final answer
    x = 14,239.30

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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.