Home / 7,868.28-10,856.95-4,681.67

Finding the Fourth Proportional to 7,868.28, 10,856.95 and 4,681.67

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Solution

The fourth proportional to 7,868.28, 10,856.95 and 4,681.67 is: 6,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.28 : 10,856.95 = 4,681.67 : x
  2. Step 2: Convert to fraction form
    7,868.28/10,856.95 = 4,681.67/x
  3. Step 3: Cross multiply
    7,868.28x = 10,856.95 × 4,681.67
  4. Step 4: Simplify right side
    7,868.28x = 50,828,631.83
  5. Step 5: Solve for x
    x = 50,828,631.83/7,868.28
  6. Step 6: Final answer
    x = 6,459.95

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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.