Home / 13,437.81-20,156.71-4,672.72

Finding the Fourth Proportional to 13,437.81, 20,156.71 and 4,672.72

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Solution

The fourth proportional to 13,437.81, 20,156.71 and 4,672.72 is: 7,009.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.81 : 20,156.71 = 4,672.72 : x
  2. Step 2: Convert to fraction form
    13,437.81/20,156.71 = 4,672.72/x
  3. Step 3: Cross multiply
    13,437.81x = 20,156.71 × 4,672.72
  4. Step 4: Simplify right side
    13,437.81x = 94,186,661.95
  5. Step 5: Solve for x
    x = 94,186,661.95/13,437.81
  6. Step 6: Final answer
    x = 7,009.08

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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.