Home / 15,656.88-21,606.70-9,368.04

Finding the Fourth Proportional to 15,656.88, 21,606.70 and 9,368.04

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Solution

The fourth proportional to 15,656.88, 21,606.70 and 9,368.04 is: 12,928.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.88 : 21,606.70 = 9,368.04 : x
  2. Step 2: Convert to fraction form
    15,656.88/21,606.70 = 9,368.04/x
  3. Step 3: Cross multiply
    15,656.88x = 21,606.70 × 9,368.04
  4. Step 4: Simplify right side
    15,656.88x = 202,412,429.87
  5. Step 5: Solve for x
    x = 202,412,429.87/15,656.88
  6. Step 6: Final answer
    x = 12,928.02

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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.