Home / 15,112.23-20,848.16-10,071.53

Finding the Fourth Proportional to 15,112.23, 20,848.16 and 10,071.53

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Solution

The fourth proportional to 15,112.23, 20,848.16 and 10,071.53 is: 13,894.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112.23 : 20,848.16 = 10,071.53 : x
  2. Step 2: Convert to fraction form
    15,112.23/20,848.16 = 10,071.53/x
  3. Step 3: Cross multiply
    15,112.23x = 20,848.16 × 10,071.53
  4. Step 4: Simplify right side
    15,112.23x = 209,972,818.53
  5. Step 5: Solve for x
    x = 209,972,818.53/15,112.23
  6. Step 6: Final answer
    x = 13,894.23

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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.