Home / 13,430.18-18,533.62-7,462.40

Finding the Fourth Proportional to 13,430.18, 18,533.62 and 7,462.40

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Solution

The fourth proportional to 13,430.18, 18,533.62 and 7,462.40 is: 10,298.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.18 : 18,533.62 = 7,462.40 : x
  2. Step 2: Convert to fraction form
    13,430.18/18,533.62 = 7,462.40/x
  3. Step 3: Cross multiply
    13,430.18x = 18,533.62 × 7,462.40
  4. Step 4: Simplify right side
    13,430.18x = 138,305,285.89
  5. Step 5: Solve for x
    x = 138,305,285.89/13,430.18
  6. Step 6: Final answer
    x = 10,298.10

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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.