Home / 13,117.02-19,574.80-11,715.72

Finding the Fourth Proportional to 13,117.02, 19,574.80 and 11,715.72

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Solution

The fourth proportional to 13,117.02, 19,574.80 and 11,715.72 is: 17,483.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.02 : 19,574.80 = 11,715.72 : x
  2. Step 2: Convert to fraction form
    13,117.02/19,574.80 = 11,715.72/x
  3. Step 3: Cross multiply
    13,117.02x = 19,574.80 × 11,715.72
  4. Step 4: Simplify right side
    13,117.02x = 229,332,875.86
  5. Step 5: Solve for x
    x = 229,332,875.86/13,117.02
  6. Step 6: Final answer
    x = 17,483.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.