Home / 13,117.08-19,574.16-11,715.34

Finding the Fourth Proportional to 13,117.08, 19,574.16 and 11,715.34

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Solution

The fourth proportional to 13,117.08, 19,574.16 and 11,715.34 is: 17,482.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.08 : 19,574.16 = 11,715.34 : x
  2. Step 2: Convert to fraction form
    13,117.08/19,574.16 = 11,715.34/x
  3. Step 3: Cross multiply
    13,117.08x = 19,574.16 × 11,715.34
  4. Step 4: Simplify right side
    13,117.08x = 229,317,939.61
  5. Step 5: Solve for x
    x = 229,317,939.61/13,117.08
  6. Step 6: Final answer
    x = 17,482.39

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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.