Home / 13,258.16-19,886.20-7,707.96

Finding the Fourth Proportional to 13,258.16, 19,886.20 and 7,707.96

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Solution

The fourth proportional to 13,258.16, 19,886.20 and 7,707.96 is: 11,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.16 : 19,886.20 = 7,707.96 : x
  2. Step 2: Convert to fraction form
    13,258.16/19,886.20 = 7,707.96/x
  3. Step 3: Cross multiply
    13,258.16x = 19,886.20 × 7,707.96
  4. Step 4: Simplify right side
    13,258.16x = 153,281,995.61
  5. Step 5: Solve for x
    x = 153,281,995.61/13,258.16
  6. Step 6: Final answer
    x = 11,561.34

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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.