Home / 15,931.04-21,986.07-9,557.87

Finding the Fourth Proportional to 15,931.04, 21,986.07 and 9,557.87

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Solution

The fourth proportional to 15,931.04, 21,986.07 and 9,557.87 is: 13,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,931.04 : 21,986.07 = 9,557.87 : x
  2. Step 2: Convert to fraction form
    15,931.04/21,986.07 = 9,557.87/x
  3. Step 3: Cross multiply
    15,931.04x = 21,986.07 × 9,557.87
  4. Step 4: Simplify right side
    15,931.04x = 210,139,998.87
  5. Step 5: Solve for x
    x = 210,139,998.87/15,931.04
  6. Step 6: Final answer
    x = 13,190.60

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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.