Home / 10,345.48-15,518.28-7,050.40

Finding the Fourth Proportional to 10,345.48, 15,518.28 and 7,050.40

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Solution

The fourth proportional to 10,345.48, 15,518.28 and 7,050.40 is: 10,575.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.48 : 15,518.28 = 7,050.40 : x
  2. Step 2: Convert to fraction form
    10,345.48/15,518.28 = 7,050.40/x
  3. Step 3: Cross multiply
    10,345.48x = 15,518.28 × 7,050.40
  4. Step 4: Simplify right side
    10,345.48x = 109,410,081.31
  5. Step 5: Solve for x
    x = 109,410,081.31/10,345.48
  6. Step 6: Final answer
    x = 10,575.64

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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.