Home / 14,507.52-19,870.34-13,656.40

Finding the Fourth Proportional to 14,507.52, 19,870.34 and 13,656.40

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Solution

The fourth proportional to 14,507.52, 19,870.34 and 13,656.40 is: 18,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507.52 : 19,870.34 = 13,656.40 : x
  2. Step 2: Convert to fraction form
    14,507.52/19,870.34 = 13,656.40/x
  3. Step 3: Cross multiply
    14,507.52x = 19,870.34 × 13,656.40
  4. Step 4: Simplify right side
    14,507.52x = 271,357,311.18
  5. Step 5: Solve for x
    x = 271,357,311.18/14,507.52
  6. Step 6: Final answer
    x = 18,704.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.