Home / 10,065.24-15,030.08-8,220.02

Finding the Fourth Proportional to 10,065.24, 15,030.08 and 8,220.02

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Solution

The fourth proportional to 10,065.24, 15,030.08 and 8,220.02 is: 12,274.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,065.24 : 15,030.08 = 8,220.02 : x
  2. Step 2: Convert to fraction form
    10,065.24/15,030.08 = 8,220.02/x
  3. Step 3: Cross multiply
    10,065.24x = 15,030.08 × 8,220.02
  4. Step 4: Simplify right side
    10,065.24x = 123,547,503.60
  5. Step 5: Solve for x
    x = 123,547,503.60/10,065.24
  6. Step 6: Final answer
    x = 12,274.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.