Home / 10,581.58-15,852.75-5,310.40

Finding the Fourth Proportional to 10,581.58, 15,852.75 and 5,310.40

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Solution

The fourth proportional to 10,581.58, 15,852.75 and 5,310.40 is: 7,955.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.58 : 15,852.75 = 5,310.40 : x
  2. Step 2: Convert to fraction form
    10,581.58/15,852.75 = 5,310.40/x
  3. Step 3: Cross multiply
    10,581.58x = 15,852.75 × 5,310.40
  4. Step 4: Simplify right side
    10,581.58x = 84,184,443.60
  5. Step 5: Solve for x
    x = 84,184,443.60/10,581.58
  6. Step 6: Final answer
    x = 7,955.75

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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.