Home / 14,354.59-19,800.40-9,870.57

Finding the Fourth Proportional to 14,354.59, 19,800.40 and 9,870.57

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Solution

The fourth proportional to 14,354.59, 19,800.40 and 9,870.57 is: 13,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,354.59 : 19,800.40 = 9,870.57 : x
  2. Step 2: Convert to fraction form
    14,354.59/19,800.40 = 9,870.57/x
  3. Step 3: Cross multiply
    14,354.59x = 19,800.40 × 9,870.57
  4. Step 4: Simplify right side
    14,354.59x = 195,441,085.87
  5. Step 5: Solve for x
    x = 195,441,085.87/14,354.59
  6. Step 6: Final answer
    x = 13,615.23

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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.