Home / 13,583.70-18,746.28-7,615.08

Finding the Fourth Proportional to 13,583.70, 18,746.28 and 7,615.08

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Solution

The fourth proportional to 13,583.70, 18,746.28 and 7,615.08 is: 10,509.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.70 : 18,746.28 = 7,615.08 : x
  2. Step 2: Convert to fraction form
    13,583.70/18,746.28 = 7,615.08/x
  3. Step 3: Cross multiply
    13,583.70x = 18,746.28 × 7,615.08
  4. Step 4: Simplify right side
    13,583.70x = 142,754,421.90
  5. Step 5: Solve for x
    x = 142,754,421.90/13,583.70
  6. Step 6: Final answer
    x = 10,509.24

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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.